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Finding the Fourth Proportional to 235,046, 352,619.60 and 72,936.84

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Solution

The fourth proportional to 235,046, 352,619.60 and 72,936.84 is: 109,420.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,046 : 352,619.60 = 72,936.84 : x
  2. Step 2: Convert to fraction form
    235,046/352,619.60 = 72,936.84/x
  3. Step 3: Cross multiply
    235,046x = 352,619.60 × 72,936.84
  4. Step 4: Simplify right side
    235,046x = 25,718,959,346.06
  5. Step 5: Solve for x
    x = 25,718,959,346.06/235,046
  6. Step 6: Final answer
    x = 109,420.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.